Re: center hub g10 attachment revisited

["Tesla list" <tesla@xxxxxxxxxx>]

Original poster: Vardan <vardan01@xxxxxxxxxxxxxxxxxxxxxxx>

Hi,

I use them to attach robot wheels to motor 
shafts.  They are very tough and take very high 
torque.  But for electrode holders I see four possible problems:

1. Cost - They are bout $25 - $30 each for the small ones.

2. Movement - When you tighten them, the cone 
sections move forward.  So it will shift the 
electrode maybe 30 mil.  With trial and error (or 
a file) you could probably get them just in the 
right place though.  It is a real problem for the 
robot wheels since you have to lock them up 
further than they will be when tightened.

3. Force - The cone sections put a "giant" force 
on the hole.  I am not sure phenolics would not 
just squish.  I sleeve all the robot wheels with 
pressed in high strength brass:

http://team-titanium.com/%7Eti-tan/DesignMechanical/CogMillingDetail.jpg

4. Heat - I am not sure they would dissipate heat 
very well.  But they are all steel so it should not hurt them.

Cheers,

        Terry


At 01:53 PM 6/2/2006, you wrote:
> Hello,
> Is anyone out there familiar with the Trantorque 
> GT. It does not use bolt through solution here?s 
> a link if Terry would be so kind to allow it or 
> move it 
> <http://www.smallparts.com/products/descriptions/ttq-mttq.cfm>http://www.smallparts.com/products/descriptions/ttq-mttq.cfm 
> but my machinist gave me some much better 
> engineering data which I can scan and send on if 
> there is interest it may be on their site 
> somewhere?.or elsewhere at a distributor.
>
> Jim Mora